Jurisprudence Commons^™

Judge Posner’S Simple Law, Mitchell N. Berman

Faculty Scholarship at Penn Law

The world is complex, Richard Posner observes in his most recent book, Reflections on Judging. It follows that, to resolve real-world disputes sensibly, judges must be astute students of the world’s complexity. The problem, he says, is that, thanks to disposition, training, and professional incentives, they aren’t. Worse than that, the legal system generates its own complexity precisely to enable judges “to avoid rather than meet and overcome the challenge of complexity” that the world delivers. Reflections concerns how judges needlessly complexify inherently simple law, and how this complexification can be corrected.

Posner’s diagnoses and prescriptions range ...

Catalogs, Gideon Parchomovsky, Alex Stein

Faculty Scholarship at Penn Law

It is a virtual axiom in the world of law that legal norms come in two prototypes: rules and standards. The accepted lore suggests that rules should be formulated to regulate recurrent and frequent behaviors, whose contours can be defined with sufficient precision. Standards, by contrast, should be employed to address complex, variegated, behaviors that require the weighing of multiple variables. Rules rely on an ex ante perspective and are therefore considered the domain of the legislator; standards embody a preference for ex post, ad-hoc, analysis and are therefore considered the domain of courts. The rules/standards dichotomy has become ...